91269671 has 2 divisors, whose sum is σ = 91269672. Its totient is φ = 91269670.

The previous prime is 91269623. The next prime is 91269677. The reversal of 91269671 is 17696219.

It is a strong prime.

It is an emirp because it is prime and its reverse (17696219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91269671 - 2¹⁴ = 91253287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91269677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45634835 + 45634836.

It is an arithmetic number, because the mean of its divisors is an integer number (45634836).

Almost surely, 2^91269671 is an apocalyptic number.

91269671 is a deficient number, since it is larger than the sum of its proper divisors (1).

91269671 is an equidigital number, since it uses as much as digits as its factorization.

91269671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 91269671 is about 9553.5161589857. The cubic root of 91269671 is about 450.2380156495.

The spelling of 91269671 in words is "ninety-one million, two hundred sixty-nine thousand, six hundred seventy-one".